Home / 13,873.41-19,143.92-7,904.72

Finding the Fourth Proportional to 13,873.41, 19,143.92 and 7,904.72

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Solution

The fourth proportional to 13,873.41, 19,143.92 and 7,904.72 is: 10,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.41 : 19,143.92 = 7,904.72 : x
  2. Step 2: Convert to fraction form
    13,873.41/19,143.92 = 7,904.72/x
  3. Step 3: Cross multiply
    13,873.41x = 19,143.92 × 7,904.72
  4. Step 4: Simplify right side
    13,873.41x = 151,327,192.06
  5. Step 5: Solve for x
    x = 151,327,192.06/13,873.41
  6. Step 6: Final answer
    x = 10,907.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.